HBASE-1722 Add support for exporting HBase metrics via JMX

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@813230 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/hadoop/hbase/ipc/HBaseRPCStatistics.java

@@ -0,0 +1,48 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.ipc;
+
+import javax.management.ObjectName;
+
+import org.apache.hadoop.metrics.util.MBeanUtil;
+import org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase;
+import org.apache.hadoop.metrics.util.MetricsRegistry;
+
+/**
+ * Exports HBase RPC statistics recorded in {@link HBaseRpcMetrics} as an MBean
+ * for JMX monitoring.
+ */
+public class HBaseRPCStatistics extends MetricsDynamicMBeanBase {
+  private final ObjectName mbeanName;
+
+  public HBaseRPCStatistics(MetricsRegistry registry, 
+      String hostName, String port) {
+	  super(registry, "HBaseRPCStatistics");
+
+    String name = String.format("RPCStatistics-%s", 
+        (port != null ? port : "unknown"));
+
+    mbeanName = MBeanUtil.registerMBean("HBase", name, this);
+  }
+
+  public void shutdown() {
+    if (mbeanName != null)
+      MBeanUtil.unregisterMBean(mbeanName);
+  }
+
+}

src/java/org/apache/hadoop/hbase/master/metrics/MasterStatistics.java

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+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.master.metrics;
+
+import javax.management.ObjectName;
+
+import org.apache.hadoop.metrics.util.MBeanUtil;
+import org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase;
+import org.apache.hadoop.metrics.util.MetricsRegistry;
+
+/**
+ * Exports the {@link MasterMetrics} statistics as an MBean
+ * for JMX.
+ */
+public class MasterStatistics extends MetricsDynamicMBeanBase {
+  private final ObjectName mbeanName;
+
+  public MasterStatistics(MetricsRegistry registry) {
+    super(registry, "MasterStatistics");
+    mbeanName = MBeanUtil.registerMBean("Master", "MasterStatistics", this);    
+  }
+
+  public void shutdown() {
+    if (mbeanName != null)
+      MBeanUtil.unregisterMBean(mbeanName);
+  }
+}

src/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerStatistics.java

@@ -0,0 +1,45 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.regionserver.metrics;
+
+import javax.management.ObjectName;
+
+import org.apache.hadoop.metrics.util.MBeanUtil;
+import org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase;
+import org.apache.hadoop.metrics.util.MetricsRegistry;
+
+/**
+ * Exports metrics recorded by {@link RegionServerMetrics} as an MBean
+ * for JMX monitoring.
+ */
+public class RegionServerStatistics extends MetricsDynamicMBeanBase {
+
+  private final ObjectName mbeanName;
+
+  public RegionServerStatistics(MetricsRegistry registry, String rsName) {
+    super(registry, "RegionServerStatistics");
+    mbeanName = MBeanUtil.registerMBean("RegionServer", 
+        "RegionServerStatistics", this); 
+  }
+
+  public void shutdown() {
+    if (mbeanName != null)
+      MBeanUtil.unregisterMBean(mbeanName);
+  }
+
+}